Short answer: A mezzo-soprano is the middle female voice, with a typical range of about A3 to A5. A contralto is the lowest and rarest female voice, about F3 to F5. The contralto sits roughly a third lower and has a darker, heavier sound; the mezzo is warmer and brighter at the top. The two share most of their notes, so the real difference is where each voice is comfortable.
Mezzo-Soprano vs Contralto Range
Typical ranges: Mezzo-soprano A3–A5, Contralto F3–F5. They share 21 notes (A3–F5), so range alone rarely decides. Choose your lowest and highest comfortable notes to see which fits you.
- Mezzo-soprano A3–A5 · 220 Hz–880 HzMiddle female voice; warm and full
- Contralto F3–F5 · 175 Hz–698 HzLowest female voice; dark and rich
Typical classical ranges; many voices go beyond them. Range is one part of voice type: tone colour, tessitura and where your voice changes register matter too.
Mezzo-Soprano vs Contralto at a Glance
| Mezzo-soprano | Contralto | |
|---|---|---|
| Typical range | A3–A5 (220–880 Hz) | F3–F5 (175–698 Hz) |
| Comfortable zone (tessitura) | About C4–E5 | About A3–C5 |
| Sound | Warm, full, bright at the top | Dark, rich, heavy |
| Register change | Around E4–F4 and again near E5 | Lower, around D4–E4 |
| How common | The most common female voice | The rarest female voice |
| Choir part | Soprano 2 or alto | Alto |
What Is a Mezzo-Soprano?
Mezzo is Italian for “middle”: the mezzo-soprano sits between the soprano and the contralto (all six types are compared in voice types). Most women are mezzo-sopranos. Mezzos have a strong middle voice and a full top up to A5, and in opera they play characters such as Carmen, young men (“trouser roles”) and many villains and mothers. The voice above, the soprano, is covered in the soprano voice guide.
What Is a Contralto?
The contralto is the lowest female voice, with a deep chest voice that can go down to E3 or lower and a dark, velvety colour. True contraltos are rare, so many of the low female roles in opera are sung by mezzo-sopranos. Very low contraltos are sometimes called contralto profondo, and agile ones that sing fast runs, as in Rossini, coloratura contralto.
Range vs Tessitura: The Real Difference
A mezzo and a contralto may have almost the same lowest and highest notes. What separates them is tessitura, the part of the range where the voice sounds and feels best over a whole song (see what tessitura is). A contralto is happiest around A3 to C5 and tires if a song sits high for long; a mezzo is happiest a third higher and sounds heavy or pressed if a song sits low for long. The terms mezzo-contralto and low mezzo describe voices in between.
Famous Opera Roles
| Role | Opera | Voice |
|---|---|---|
| Carmen | Bizet, Carmen | Mezzo-soprano |
| Dalila | Saint-Saëns, Samson et Dalila | Mezzo-soprano |
| Cherubino (a trouser role) | Mozart, The Marriage of Figaro | Mezzo-soprano |
| Erda | Wagner, The Ring | Contralto |
| Orfeo | Gluck, Orfeo ed Euridice | Contralto (or mezzo) |
Opera houses often cast mezzo-sopranos in contralto roles because true contraltos are so rare, which blurs the line between the two for listeners.
Registers: Where Each Voice Changes
Both voices use a strong chest voice at the bottom and head voice at the top, but they change at different places. Contraltos keep a full chest voice higher and switch around D4–E4; mezzo-sopranos usually switch around E4–F4 and find their top notes easier. A contralto forced to sing high for long stretches loses the dark colour that makes the voice special; a mezzo pushed low for long sounds heavy and loses brightness.
Choosing Songs as a Mezzo or Contralto
- Look at where most of the melody sits, not just the highest note.
- Contraltos: songs centred around A3–B4, often in lower keys than the original female recording.
- Mezzo-sopranos: songs centred around C4–D5 with occasional notes up to F5–G5.
- Change the key freely: moving a song down two or three semitones is normal and makes it fit your voice.
Where Does Alto Fit In?
Alto is the choir part both voices usually sing, not a separate voice type. Contraltos almost always sing alto; mezzo-sopranos may sing alto or second soprano. More on the part in the alto voice guide, and on the naming in alto vs contralto.
Pop Singers: Mezzo or Contralto?
| Singer | Reported range | Classified on this site as |
|---|---|---|
| Beyoncé | G♯2–F6 | Mezzo-soprano |
| Taylor Swift | B♭2–G5 | Mezzo-soprano |
| Amy Lee | E3–G5 | Mezzo-soprano |
| Amy Winehouse | D3–E♭6 | Contralto |
| Etta James | D3–G5 | Contralto |
| Brandy | F3–D5 | Contralto |
Pop classifications are looser than classical ones, but the pattern holds: the contraltos build their sound on a dark, strong low and middle range, the mezzos on a warm middle and a brighter top.
How to Tell Whether You Are a Mezzo or a Contralto
- Measure your comfortable range. A top around A5 points to mezzo; a top around F5 with strong notes down to F3 points to contralto.
- Notice where you shift from chest to head voice: lower (around D4) for contraltos, higher (around F4) for mezzos.
- Sing a song that sits around B4–D5 for a long time. Mezzos find it comfortable; contraltos find it tiring.
- Listen to the colour: contraltos sound darker and heavier even on the same notes.
Start with the voice type test, which shows how well your range matches both types, then use tessitura and colour to decide. Your notes and closest famous singers are in the vocal range calculator.
Frequently Asked Questions
Which is lower, mezzo-soprano or contralto?
Contralto, by about a third.
Is contralto rarer than mezzo-soprano?
Yes. Mezzo-soprano is the most common female voice; true contraltos are rare.
Can a mezzo-soprano sing contralto parts?
Often, yes, especially low mezzos. Parts that sit low for long stretches suit a true contralto better.
Can your classification change?
Yes. Voices darken and deepen with age and training, and some singers move from mezzo to contralto or the other way.
Conan is a vocal analysis and singing tools writer specializing in vocal range testing, pitch recognition, voice classification, and music education for singers, musicians, and beginners. He creates practical, easy-to-understand content focused on vocal analysis tools, singing improvement, and voice training resources.